Abstract
The genus Acacia is quite large and can be found in the warm subarid and arid parts, but little is known about its chemistry, especially the volatile parts. The volatile oils from fresh flowers of A . mollissima and A . cyclops (growing in Tunisia) obtained by hydrodistillation were analyzed by GC then GC / MS . Eighteen (94.7% of the total oil composition) and 23 (97.4%) compounds were identified in these oils, respectively. ( E,E )‐ α ‐Farnesene (51.5%) and ( E )‐cinnamyl alcohol (10.7%) constituted the major compounds of the flower oil of A . mollissima , while nonadecane (29.6%) and caryophyllene oxide (15.9%) were the main constituents of the essential oil of A . cyclops . Antioxidant activity of the isolated oils was studied by varied assays, i.e., 2,2‐diphenyl‐1‐picrylhydrazyl ( DPPH ) and 2,2‐azinobis 3‐ethylbenzothiazoline‐6‐sulfonic acid ( ABTS ); the isolated oils showed lowest IC 50 (4 – 39 μg/ml) indicating their high antioxidant activity. The α ‐glucosidase inhibitor activity was also evaluated and Acacia oils were found to be able to strongly inhibit this enzyme with IC 50 values (81 – 89 μg/ml) very close to that of acarbose which was used as positive control. Furthermore, they were tested against five Gram ‐positive and Gram ‐negative bacteria and one Candida species. Essential oil of A . mollissima was found to be more active than that of A . cyclops , especially against Pseudomonas aeruginosa ( MIC = 0.31 mg/ml and MBC = 0.62 mg/ml).
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Claims 9
Claim · model-written summary
Eighteen compounds comprised 94.7% of Acacia mollissima flower oil.
- Taxon
- A . mollissima
Acacia pubescense0 - Outcome
- compounds were identifiede0
- Value
- 94.7% of the total oil compositione0
- Setting
- Tunisiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The volatile oils from fresh flowers of A . mollissima and A . cyclops (growing in Tunisia) obtained by hydrodistillation were analyzed by GC then GC / MS . Eighteen (94.7% of the total oil composition) and 23 (97.4%) compounds were identified in these oils, respectively”
Claim · model-written summary
Twenty three compounds comprised 97.4% of Acacia cyclops flower oil.
- Taxon
- A . cyclops
Acacia cyclopse0 - Outcome
- compounds were identifiede0
- Value
- 97.4%e0
- Setting
- Tunisiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The volatile oils from fresh flowers of A . mollissima and A . cyclops (growing in Tunisia) obtained by hydrodistillation were analyzed by GC then GC / MS . Eighteen (94.7% of the total oil composition) and 23 (97.4%) compounds were identified in these oils, respectively”
Claim · model-written summary
E,E α Farnesene comprised 51.5% of Acacia mollissima flower oil.
- Taxon
- A . mollissimaAcacia pubescense0
- Outcome
- ( E,E )‐ α ‐Farnesenee0
- Value
- 51.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“( E,E )‐ α ‐Farnesene (51.5%) and ( E )‐cinnamyl alcohol (10.7%) constituted the major compounds of the flower oil of A . mollissima”
Claim · model-written summary
Cinnamyl alcohol comprised 10.7% of Acacia mollissima flower oil.
- Taxon
- A . mollissimaAcacia pubescense0
- Outcome
- ( E )‐cinnamyl alcohole0
- Value
- 10.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“( E,E )‐ α ‐Farnesene (51.5%) and ( E )‐cinnamyl alcohol (10.7%) constituted the major compounds of the flower oil of A . mollissima”
Claim · model-written summary
Nonadecane comprised 29.6% of Acacia cyclops essential oil.
- Taxon
- A . cyclopsAcacia cyclopse0
- Outcome
- nonadecanee0
- Value
- 29.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonadecane (29.6%) and caryophyllene oxide (15.9%) were the main constituents of the essential oil of A . cyclops”
Claim · model-written summary
Caryophyllene oxide comprised 15.9% of Acacia cyclops essential oil.
- Taxon
- A . cyclopsAcacia cyclopse0
- Outcome
- caryophyllene oxidee0
- Value
- 15.9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonadecane (29.6%) and caryophyllene oxide (15.9%) were the main constituents of the essential oil of A . cyclops”
Claim · model-written summary
Isolated Acacia oils had antioxidant IC50 values of 4–39 μg/ml.
AcaciaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the isolated oils showed lowest IC 50 (4 – 39 μg/ml) indicating their high antioxidant activity”
t0“Acacia mollissima and Acacia cyclops”
Claim · model-written summary
Acacia oils strongly inhibited α glucosidase with IC50 values of 81–89 μg/ml.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia oils were found to be able to strongly inhibit this enzyme with IC 50 values (81 – 89 μg/ml) very close to that of acarbose”
Claim · model-written summary
Acacia mollissima oil was more antimicrobial than Acacia cyclops oil, particularly against Pseudomonas aeruginosa.
- Taxon
- A . mollissimaAcacia pubescense0
- Outcome
- more activee0
- Direction
- more activee0
- Value
- 0.31 mg/mle0
- Qualifier
- Pseudomonas aeruginosae0
- Comparator
- A . cyclopse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oil of A . mollissima was found to be more active than that of A . cyclops , especially against Pseudomonas aeruginosa ( MIC = 0.31 mg/ml and MBC = 0.62 mg/ml)”